export const codeExample = `
package com.kob.botrunningsystem.utils;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class Bot implements java.util.function.Supplier<Integer> {
  private boolean check_tail_increasing(int step) { // 检验当前回合，蛇的长度是否增加
      if (step <= 10)
          return true;
      return step % 3 == 1;
  }

  public List<Cell> getCells(int sx, int sy, String steps) {
      steps = steps.substring(1, steps.length() - 1);
      List<Cell> res = new ArrayList<>();

      int[] dx = {-1, 0, 1, 0}, dy = {0, 1, 0, -1};
      int x = sx, y = sy;
      int step = 0;
      res.add(new Cell(x, y));
      for (int i = 0; i < steps.length(); i++) {
          int d = steps.charAt(i) - '0';
          x += dx[d];
          y += dy[d];
          res.add(new Cell(x, y));
          if (!check_tail_increasing(++step)) {
              res.remove(0);
          }
      }
      return res;
  }

  public Integer nextMove(String input) {
      String[] strs = input.split("#");
      int[][] g = new int[13][14];
      for (int i = 0, k = 0; i < 13; i++) {
          for (int j = 0; j < 14; j++, k++) {
              if (strs[0].charAt(k) == '1') {
                  g[i][j] = 1;
              }
          }
      }

      int aSx = Integer.parseInt(strs[1]), aSy = Integer.parseInt(strs[2]);
      int bSx = Integer.parseInt(strs[4]), bSy = Integer.parseInt(strs[5]);

      List<Cell> aCells = getCells(aSx, aSy, strs[3]);
      List<Cell> bCells = getCells(bSx, bSy, strs[6]);

      for (Cell c : aCells)
          g[c.x][c.y] = 1;
      for (Cell c : bCells)
          g[c.x][c.y] = 1;

      int[] dx = {-1, 0, 1, 0}, dy = {0, 1, 0, -1};
      for (int i = 0; i < 4; i++) {
          int x = aCells.get(aCells.size() - 1).x + dx[i];
          int y = aCells.get(aCells.size() - 1).y + dy[i];
          if (x >= 0 && x < 13 && y >= 0 && y < 14 && g[x][y] == 0) {
              return i;
          }
      }

      return 0;
  }

  @Override
  public Integer get() {
      File file = new File("input.txt");
      try {
          Scanner sc = new Scanner(file);
          return nextMove(sc.next());
      } catch (FileNotFoundException e) {
          throw new RuntimeException(e);
      }
  }

  static class Cell {
      public int x, y;

      public Cell(int x, int y) {
          this.x = x;
          this.y = y;
      }
  }
}
`
